Plot: "The Living Weapon" explores the history of America's biological-weapons program, which began in 1942 with a group that worked parallel to the Manhattan Project, and continued to 1969, when President Nixon terminated it. Included: comments from Bill Patrick, the program's chief of product development; bioweapons historian Norman Covert; biowarfare expert Martin Furmanski; historian Brian Balmer; Jeanne Guillemin, senior adviser to MIT's Security Studies Program